obsidian – מילון אנגלי-אנגלי
obsidian
n.
black transparent volcanic rock that is formed from the cooling process of molten lava
Obsidian
obsidian
Noun
1. acid or granitic glass; usually dark, but transparent in thin pieces
(hypernym) volcanic glass
Obsidian (der)
nm.
obsidian, black transparent volcanic rock that is formed from the cooling process of molten lava
Obsidian
(n.)
A kind of glass produced by volcanoes. It is usually of a black color, and opaque, except in thin splinters.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter.
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